20891088

素因数分解:

$2^4\times 3^3\times {\mathrm{37}}^1\times {\mathrm{1307}}^1$

素因数の和:1361

約数の個数: 80

約数和(自身を含む): 61632960

約数和(自身を除く): 40741872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 37, 48, 54, 72, 74, 108, 111, 144, 148, 216, 222, 296, 333, 432, 444, 592, 666, 888, 999, 1307, 1332, 1776, 1998, 2614, 2664, 3921, 3996, 5228, 5328, 7842, 7992, 10456, 11763, 15684, 15984, 20912, 23526, 31368, 35289, 47052, 48359, 62736, 70578, 94104, 96718, 141156, 145077, 188208, 193436, 282312, 290154, 386872, 435231, 564624, 580308, 773744, 870462, 1160616, 1305693, 1740924, 2321232, 2611386, 3481848, 5222772, 6963696, 10445544, 20891088]

約数ペア:

[(1, 20891088), (2, 10445544), (3, 6963696), (4, 5222772), (6, 3481848), (8, 2611386), (9, 2321232), (12, 1740924), (16, 1305693), (18, 1160616), (24, 870462), (27, 773744), (36, 580308), (37, 564624), (48, 435231), (54, 386872), (72, 290154), (74, 282312), (108, 193436), (111, 188208), (144, 145077), (148, 141156), (216, 96718), (222, 94104), (296, 70578), (333, 62736), (432, 48359), (444, 47052), (592, 35289), (666, 31368), (888, 23526), (999, 20912), (1307, 15984), (1332, 15684), (1776, 11763), (1998, 10456), (2614, 7992), (2664, 7842), (3921, 5328), (3996, 5228)]